Lasing and refractive indices of nanocrystalline ceramics of cubic yttrium oxide Y2O3 doped with Nd3+ and Yb3+ ions

A continuous-wave lasing at 1 mum was excited by the radiation of semiconductor laser diodes at room temperature in nanocrystalline ceramics Y2O3 doped with Nd3+ and Yb3+ ions. The refractive indices of the undoped nanocrystalline Y2O3 ceramics were measured in the wavelength range 0.4-9 mum. (C) 2003 MAIK Nauka/Interperiodica.